Objective: To investigate the role of prostate specific antigen(PSA) in screening for prostate cancer. Methods: The serum PSA of 4 848 males over 50-years old for serum PSA was evaluated,respectively out of them 33 cases diagnosed as prostate cancer(screening group) were compared in terms of age distribution,level of PSA,clinical stages,Gleason score and treatment modalities with 28 patients in our hospital(clinical group). Results: In the screening group,the positive percentage account for 9.5%(PSA≥4 ng/ml) and the PCa positive rate was 6.8‰(33/4 848).The average age of the patients(73.2?8.0) was insignificant different between these two groups.The percentage of the cases beyond 20 ng/ml PSA in the screening group was significantly lower than that in clinical group,with 42.4% and 71.5% respectively.Furthermore,the cases with clinical stage A+B accounted for 69.7% in the screening group,while it was 35.7% in the clinical group(P

AIM: To investigate the relationship between osmolarity, cell volume and cell proliferation in nasopharyngeal carcinoma cells. METHODS: MTT method was applied to detect the proliferation ability of the poorly-differentiated nasopharyngeal carcinoma cell (CNE-2Z) under various osmolarity conditions. The flow cytometry was used to analyse cell cycle distribution. Cell volume was obtained by the image analysis of living cells and cell viability was determined by the trypan blue assay. RESULTS: Cultivation of cells under the hypertonic conditions of 370 and 440 mOsmol/L increased cell volume by 8.7% and 27.8% and facilitated cell proliferation by 22.2% and 33.9%, respectively. However, hypotonic incubation of cells with osmolarity of 160 and 230 mOsmol/L decreased cell volume by 12.8% and 4.1% and inhibited cell proliferation by 34.0% and 15.6%, respectively. Cell volume was positively correlated with cell proliferation rate. Long-term cultivation of cells under anisotonic conditions did not significantly alter cell cycle distribution, but hypotonic cultivation decreased cell viability. CONCLUSION: Proliferation of nasopharyngeal carcinoma cells was closely correlated with the osmolarity of culture medium and cell volume. Hypotonic cultivation may inhibit cell proliferation by decreasing cell volume to facilitate cell death mechanisms.

AIM: To study the relationship between multidrug-resistance (MDR1) gene product P-glycoprotein (P-gp) and the volume-activated chloride current. METHODS:The volume-activated chloride current in bovine non-pigmented ciliary epithelial cells was recorded using a whole cell recording technique. An antisense technique was used to inhibit the expression of MDR1 gene. The immunofluorescence of P-gp was monitored with a real-time laser confocal microscope.RESULTS:P-gp immunofluorescence correlated negatively with the concentration of the human MDR1 antisense oligonucleotide. The antisense oligonucleotide inhibited the volume-activated chloride current specifically and partially. The latency of activation of the current increased and the peak current decreased. The percentage of inhibition of peak current correlated positively to the concentration of the antisense oligonucleotide( r =0.99, P

Twenty six patients with fracture of tibial plateau was under arthroscopy assisted reduction, the joint surface of bone graft, and USES the steel plate fixation treatment. Average surgery time was 65 min (70-120 min), average fracture healing time was 15 weeks (12-17 weeks), joint surface anatomical reattachment rate was 92.9%. Using break knee function criteria evaluation of curative effect: 18 cases great 6 cases wed, 2 cases ok, fine rate was 92.3%. No infection, deep venous thrombosis and small leg fascia chamber syndrome and other complications. Conclusion is that treatment of tibial plateau fractures under arthroscope has advantages of small trauma, check intuitively and reset accurately, functional recovery of patients are satisfied, the treatment has certain clinical application value.
Adult ; Arthroscopy ; Female ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; Tibial Fractures ; surgery ; Treatment Outcome ; Young Adult

Objective:To observe the curative effects and the influences of Yueanxin injection (YAXI, 悦安欣注射液) on acute cerebral infarction (ACI) and on blood rheology separately. Methods:Sixtytwo cases with ACI were randomly divided into treated group ( n=31) which was treated with YAXI and control group (n=31) which treated with tetrameth ylp yrazine injection (川芎嗪注射液) as control. Once a day for 30 days as a therape utic course to both groups.The curative effects and the changes in blood rheology parameter s were observed.Results:The marked effective rate (74.2%) and total effective rate (96.8%) in treated g roup were significantly superior to those (38.7% and 67.7% respectively) in cont rol group (P<0.05 or P<0.01). The improvements of blood rheology param eters in tr eated group were significantly better than those in control group (P<0.0 5 or P<0.01).Conclusions:The curative effects of YAXI on ACI are sufficient.

Objective To establish the hyperinsulinemic-euglycemic clamp(HEC) technique in conscious rats, and to explore the effect of acute infusion of lipid on glucose infusion rate (GIR) in rats. Methods Ten SD rats were random-ly divided into two groups, 5 rats for each group. The right jugular vein and left carotid artery were catheterized and under-went a HEC with infusion of lipid (intralipid group) for 6 hours, and with continuing infusion of 5%glucose (control group). The plasma levels of free fatty acid(FFA) and GIR were measured by HEC method. Results The level of FFA concentration increased by 17.6-fold, and GIR was reduced by 27%in the intralipid group compared to those of control group (P＜0.001). Conclusion The rat model of HEC has been successfully established by intravenous intralipid infusion, which can be con-firmed by HEC technique.

OBJECTIVE: To study the characteristics and regularity of adverse drug reactions (ADR) occurred in our hospital. METHODS: A total of 241 ADR cases occurred in our hospital form Jan. 2006 to Jun. 2009 were analyzed statistically in respect of patients’ status, category of drug, route of administration, organs and system involved in ADR and clinical manifestations. RESULTS: Of the total 241 ADR cases, 69.71%ADR cases were induced by antibacterials. 71.78% ADR cases were induced via intravenous administration. ADR mainly appeared as lesion of skin and appendants (50.92%). CONCLUSION: It is necessary to intervene and guide clinical use of drug, strengthen the monitoring of ADR and reduce the occurrences of ADR.

Purpose: To investigate the pathogenesis and clinical treatment of pulmonary inflammatory pseudotumor (PIP). Methods:To analyze the pathogenic characteristics and X-ray findings of 18 cases of PIP. Results:The rate of incidence in PIP is increasing in recent years .70 percent of the patients have infection of the respiratory system and is related to the abuse of large doses of antibiotics, there is little specificity in X-ray or CT so it is easy to confuse with malignant tumor of the lung .In pathologic sections of PIP, no malignant changes were seen, and only inflammatory cells, lymphocytes and plasm cells could be seen by light microscope. Conclusions:The antibiotic must be used properly in infection of the respiratory system and surgical treatment can be done in some asses to exclude tumor of the lung in diagnosis.

92 specimens from patients with invasive ductal carcinoma were investigated. The expression of vascular endothelial growth factor (VEGF) was demonstrated by immunocytochemical staining with an antibody against VEGF and was quantitatively estimated by using computerized image analysis system. Vessels were immunohistochemically highlighted by using an antibody to CD34, and microvessel density (MVD) was quantified. The postoperative survey in univariate analysis showed that the relapse-free-survival (RFS) time of patients with more than 87 microvessels in single microscopic field was significantly worse compared to that of patients with less than 87 microvessels in node-negative patients (P

Biopsies were randomly taken from 160 patients through endoscopy. Among them 46 patients suffered from chronic superfacial gastritis, 39 patients from chronic atrophic gastritis, 39 patients from gastric ulcer, and 36 patients from gastric cancer. Ras, p16, and p53 genes were analysed with polymerase chain reaction single strand conformation polymorphism (PCR SSCP). Helicobacter pylori (HP) was examined with RUT. Result: ① the positive rates of ras and mutant p53 in gastric cancer were significantly higher than that in gastritis and gastric ulcer( P